test: Don't allow alerts to fire during a test run
test: Don't allow alerts to fire during a test run

The alert test has not been working and a PR was able to merge that
was firing alerts during the test run.

Fix the test logic based on:

1. Remove the filter on KubeAPILatencyHigh - no longer needed in 4.6+
2. Remove the filter on KubePodCrashLooping - no longer needed in 4.6+
3. Sort the metric by number of seconds the alert was firing

The bug that allowed the merge was the filter for KubePodCrashLooping,
to omit a series we must use `unless X`. If we reintroduce a filter we
should use that syntax.

akram/origin,openshift/origin,coreydaley/origin,spadgett/origin,openshift/origin,soltysh/origin,mahak/origin,xiuwang/origin,mahak/origin,coreydaley/origin,akram/origin,akram/origin,jeremyeder/origin,deads2k/origin,coreydaley/origin,spadgett/origin,soltysh/origin,csrwng/origin,jeremyeder/origin,jeremyeder/origin,bparees/origin,csrwng/origin,mfojtik/origin,mfojtik/origin,JacobTanenbaum/origin,JacobTanenbaum/origin,jsafrane/origin,gabemontero/origin,hroyrh/origin,xiuwang/origin,spadgett/origin,bparees/origin,sallyom/origin,xiuwang/origin,csrwng/origin,jsafrane/origin,gabemontero/origin,jeremyeder/origin,spadgett/origin,bparees/origin,hroyrh/origin,sallyom/origin,sallyom/origin,JacobTanenbaum/origin,jeremyeder/origin,mahak/origin,deads2k/origin,soltysh/origin,hroyrh/origin,gabemontero/origin,jsafrane/origin,deads2k/origin,openshift/origin,mfojtik/origin,spadgett/origin